I could abut you could abut she could abut we could abut you could abut they could abut
V-ing form
I could be abuting you could be abuting she could be abuting we could be abuting you could be abuting they could be abuting
Perfect
I could have abuted you could have abuted she could have abuted we could have abuted you could have abuted they could have abuted
V-ing perfect
I could have been abuting you could have been abuting she could have been abuting we could have been abuting you could have been abuting they could have been abuting
Negation
Simple form
I could not abut you could not abut she could not abut we could not abut you could not abut they could not abut
V-ing form
I could not be abuting you could not be abuting she could not be abuting we could not be abuting you could not be abuting they could not be abuting
Perfect
I could not have abuted you could not have abuted she could not have abuted we could not have abuted you could not have abuted they could not have abuted
V-ing perfect
I could not have been abuting you could not have been abuting she could not have been abuting we could not have been abuting you could not have been abuting they could not have been abuting
Interrogative form
Simple form
could I abut? could you abut? could she abut? could we abut? could you abut? could they abut?
V-ing form
could I be abuting? could you be abuting? could she be abuting? could we be abuting? could you be abuting? could they be abuting?
Perfect
could I have abuted? could you have abuted? could she have abuted? could we have abuted? could you have abuted? could they have abuted?
V-ing perfect
could I have been abuting? could you have been abuting? could she have been abuting? could we have been abuting? could you have been abuting? could they have been abuting?
Interro-negative form
Simple form
could I not abut? could you not abut? could she not abut? could we not abut? could you not abut? could they not abut?
V-ing form
could I not be abuting? could you not be abuting? could she not be abuting? could we not be abuting? could you not be abuting? could they not be abuting?
Perfect
could I not have abuted? could you not have abuted? could she not have abuted? could we not have abuted? could you not have abuted? could they not have abuted?
V-ing perfect
could I not have been abuting? could you not have been abuting? could she not have been abuting? could we not have been abuting? could you not have been abuting? could they not have been abuting?